Adding emitComponentCompleteSignalForAttachedProperty()

Each item that is created by a component gets the
attached property "Component".
This property has the signal onCompleted.

This function allows the designer to manually emit this
signal once the item is setup.

I had to export QQmlComponentAttached for this.

Change-Id: I45b4e72af4f12cdcda29f165cc9bc4d9dee8faf7
Reviewed-by: Marco Bubke <marco.bubke@digia.com>

2 files changed, 14 insertions, 0 deletions

diff --git a/src/quick/designer/designersupport.cpp b/src/quick/designer/designersupport.cpp
index 063fa6ebb1..2dd041b968 100644
--- a/src/quick/designer/designersupport.cpp
+++ b/src/quick/designer/designersupport.cpp
@@ -51,6 +51,8 @@
 #include <QtQuick/private/qquickstategroup_p.h>
 #include <QtGui/QImage>
 #include <private/qqmlvme_p.h>
+#include <private/qqmlcomponentattached_p.h>
+#include <private/qqmldata_p.h>
 
 #include "designerwindowmanager_p.h"
 
@@ -375,6 +377,17 @@ void DesignerSupport::resetAnchor(QQuickItem *item, const QString &name)
     }
 }
 
+void DesignerSupport::emitComponentCompleteSignalForAttachedProperty(QQuickItem *item)
+{
+    QQmlData *data = QQmlData::get(item);
+    if (data && data->context) {
+        QQmlComponentAttached *componentAttached = data->context->componentAttached;
+        if (componentAttached) {
+            emit componentAttached->completed();
+        }
+    }
+}
+
 QList<QObject*> DesignerSupport::statesForItem(QQuickItem *item)
 {
     QList<QObject*> objectList;
diff --git a/src/quick/designer/designersupport.h b/src/quick/designer/designersupport.h
index 4567e5c3d8..5139a65645 100644
--- a/src/quick/designer/designersupport.h
+++ b/src/quick/designer/designersupport.h
@@ -125,6 +125,7 @@ public:
     static QQuickItem *anchorCenterInTargetItem(QQuickItem *item);
     static QPair<QString, QObject*> anchorLineTarget(QQuickItem *item, const QString &name, QQmlContext *context);
     static void resetAnchor(QQuickItem *item, const QString &name);
+    static void emitComponentCompleteSignalForAttachedProperty(QQuickItem *item);
 
 
     static QList<QObject*> statesForItem(QQuickItem *item);